Description
Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOW_BUILTIN_DEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth package via LocalFileStore and requires it, escaping vm2 as the Flowise process user.
Related CPE's
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References
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.5 · High
Information
Source identifier
Vulnerability status
Deferred
Published
2026-10-30T18:17:27.577Z
1 hour agoLast modified
2026-10-30T18:17:27.710Z
1 hour ago